Bentone BFG1 Technical specifications

Providing sustainable energy solutions worldwide
178 111 35-2 2018-03–06
Installation- and maintenance instruction
BFG1
STG146
Biogas

3
General
General
Table of contents
GENERAL
Important to remember! ______________________________________________4
Service _____________________________________________________________________5
What to do if you smell gas _________________________________________5
Safety instructions ______________________________________________________6
Delivery check____________________________________________________________6
1. Dimensions BFG1 Biogas__________________________________________7
1.1 Description BFG1_____________________________________________________8
1.1.1 Components BFG1 _______________________________________9
2. Dimensions STG Biogas__________________________________________10
2.1 Description STG_____________________________________________________ 11
2.1.1 Components_______________________________________________12
3. MULTIBLOC ____________________________________________________________13
3.1 DMV-DLE... ___________________________________________________________13
3.1.1 Disassembly of the the Multiblock _________________ 14
3.2 Gas pressure regulator Type FRS _____________________________17
4. ELECTRIC EQUIPMENT LME...________________________________ 20
4.1 Wiring diagram ______________________________________________________20
4.1.1 List of components______________________________________ 21
4.1.2 Function LME...___________________________________________ 21
4.2 Control program at faults; fault mode indicator LME .... _
22
4.2.1 Colour codes ______________________________________________22
4.2.1.1 Diagnosing alarm causes_______________________________22
4.2.1.2 Limiting of starting repetitions __________________________22
4.2.1.3 Alarm code table _______________________________________23
4.2.1.4 Interface diagnostics ___________________________________23

4
General
4Bentone
1. General Information
This Installation and Maintenance manual:
• is to be regarded as part of the burner and must always be kept near
the installation site
• is intended for use by authorised personnel
• must be read prior to installation
• must be observed by all who work with the burner and associated
system components
• work with the burner may only be carried out by certified installers/
personnel
Enertech AB is not liable for any typographical errors and reserves the right
to make design changes without prior notice.
Safety instructions
• The burner may only be used for its intended purpose in accordance
with the product’s technical data.
• The burner may only be installed and operated by authorised
personnel.
• The product is packaged to prevent damage from occurring during
handling. Handle the product with care. Lifting equipment must be
used to lift larger packages.
• The products must be transported/stored on a level surface in a dry
environment, max. 80% relative humidity, no condensation.
Temperature -20 to +60 °C.
• Check that the burner is compatible with the boiler’s output range.
• All components must be installed without being bent, twisted or
subjected to mechanical or thermal forces which can affect the
components.
• The burner must be installed so that it complies with local regulations
for fire safety, electrical safety, and fuel distribution.
• The gas outlet from the pressure regulator shall be configured in
accordance with applicable regulations and lead to a safe area.
• Make sure when installing the equipment that there is enough space to
service the burner.
• Permitted temperature during operation -10 to +60 °C. Max 80%
relative humidity, no condensation.
• The installer must ensure that the room has adequate air supply.
• The room must comply with local regulations pertaining to its intended
use.
• The installation site must be free of chemicals.
• Burner pipes, fan wheels and air dampers may contain sharp edges.
• The surface temperature of the burner’s components can exceed 60
°C.
• Caution: The burner has moving parts, and there is risk of crushing
injuries.
172 515 01 2018-01-02

5
General
5Bentone
• The electrical installation must be professionally carried out in
accordance with applicable high voltage regulations, as per Enertech’s
recommendations.
• Before servicing, shut off the fuel supply and turn off the power to the
burner.
• Seal inspections must be performed during installation and servicing to
prevent gas leakage.
• Care should be taken by the installer to ensure that no electrical cables
or fuel lines are crushed or otherwise damaged during installation or
servicing.
• If the boiler is equipped with an access hatch, this must be equipped
with a hatch opening switch connected to the burner's safety system.
• When in operation, the burner’s noise level can exceed 85 dBA.
Use hearing protection.
• The burner must not be put into operation without proper safety and
protection devices.
• A Class BE fire extinguisher is recommended.
• It is forbidden to alter thedesign or use accessories which have not
been approved by Enertech in writing.
• Prior to operation, the following points must be checked:
-fitting and installation work has been completed and approved
-electrical installation has been correctly performed
-flue gas ducts and combustion air ducts are not blocked
-all actuators and control and safety devices are in working order and
correctly set
Actions to take if you smell gas
Turn off the equipment and the boiler. Open windows and doors. Prevent
open flames or sparking, e.g. do not turn lights on or off, do not use any
electrical appliances, do not use mobile phones. Open windows and doors.
Close the gas ball valve. Warn residents; do not use doorbells. Evacuate
the building. Notify the installer or gas supplier once the building has been
evacuated.

6
General
6Bentone
Control system 10 years 250,000 starts
Valve control system 10 years 250,000 starts
Pressure switch 10 years 250,000 starts
Ignition system with flame guard 10 years 250,000 starts
UV flame sensor 10000 hrs N/A
Gas pressure regulators 15 years N/A
Gas valve without seal testing 10 years 250,000 starts
Gas valve with seal testing Replacement upon fault detection N/A
Gas pressure switch 10 years 250,000 starts
Safety blow-off system 10 years N/A
Damper motor N/A 500,000 starts
Contactor 10 years 500,000 starts
Burner 1 year 3000 hrs
Inspection of electrical installation 1 year 3000 hrs
Leakage check 1 year 3000 hrs
Filter 1 year replacement at ∆p>10 mbar 3000 hrs replacement at ∆p>10
mbar
Electrodes Replacement/Cleaning 1 year Replacement/Cleaning 3000 hrs
Brake disc Replacement/Cleaning 1 year Replacement/Cleaning 3000 hrs
Motor 1 year 3000 hrs
Fan wheel 1 Year
Replacement when cleaning
needed/ imbalance
3000 h
Replacement when cleaning
needed/ imbalance
The burner and its components must be recycled according to applicable regulations.
Burner servicing schedule
Servicing must be carried out once a year or after 3000 hours of operation
Component replacement intervals
Delivery check
• Make sure everything is delivered and the goods have not been
damaged during transit.
• If something is wrong with a delivery, report it to the supplier.
• Transport damage must be reported to the shipping company.

7
General
195
186 35
245
350
1. Dimensions BFG1 Biogas
The above-mentioned measurements are maximum measurements. They
can vary, depending on which components are used.
135
286
B
A
-0,5
0,0
0,5
1,0
1,5
2,0
2,5
3,0
10 15 20 25 30 35 40 45 50 55
Connection pressure 25 mbar
60% H4

8
General
1.1 Description BFG1
7
8
10
11
12
13
14
15
16
22
1
2
3
4
5
6
24
23

9
General
1.1.1 Components BFG1
1. Blast tube
2. Gas pressure switch
3. Connection multiblock
4. Ignition transformer
5. Motor
6. Capacitor
7. Multiblock
8. Air pressure switch
9.
10. Air intake
11. Air regulation
12. Electric connection
13. Gas burner control
14. Reset button
15. Nozzle assembly adjustment
16. Screw for division of burner in front and rear part
17. Nozzle assembly
18. Brake plate
19. Ignition electrode
20.
21. Nozzle
22. Air flow indicator (indicates the air setting)
23. Pressure regulator
24. Filter
18
19
17 21

10
General
2. Dimensions STG Biogas
290
139
11
13 14
15
244
192
450
103
61
249
-1,0
0,0
1,0
2,0
3,0
4,0
40 60 80 100 120
Connection pressure 45 mbar
60% H4

11
General
7
8
10
9
1
23
5
6
12
4
2.1 Description STG
23 24
16

12
General
17
18
19
21
2.1.1 Components
1. Blast tube
2. Gas pressure switch
3. Connection multiblock
4. Ignition transformer
5. Motor
6. Capacitor
7. Multiblock
8. Air pressure switch
9. Test point for the air pressure switch on the low-pressure side
10. Air intake
11. Air regulation
12. Electric connection
13. Gas burner control
14. Reset button
15. Nozzle assembly adjustment
16. Screw for division of burner in front and rear part
17. Nozzle assembly
18. Brake plate
19. Ignition electrode
20.
21. Nozzle
22.
23. Pressure regulator
24. Filter

13
General
3. MULTIBLOC
3.1 DMV-DLE...
Double solenoid valve Type DMV-D.../11 Type DMV-DLE.../11
Nominal widths
Rp 1/2 - Rp 2
Electrical connection IEC 730-1 (VDE 0631 T1)
Volt U n ~(AC) 230 V
Valve 2 x Class A
Ambient temperature -15 °C … +60 °C
IP 54
Family 1 + 2 + 3
Max. operating pressure 500 mbar
DMV 505-520/11
Pressure taps 1, 2, 3, 4 Sealing plug

14
General
!After completion of the jobs on the gas components, perform leakage control and function control.
1. Loosen screws A and B do
not remove. Figs 1 and 2
2. Remove screws C and D. Figs
1 and 2
1. 2.
3.1.1 Disassembly of the the Multiblock
Screw plugs 1,2,3 may also be
replaced by a measuring socket
G 1/8 DIN ISO 228.
Concealed connecting bore for
system accessories.

15
General
4.
3.
5.
6.
Vmin. / mini.> 0.1 x Vmax. / maxi.
° °
2.
1.
3.
3. Remove double solenoid valve
between the threaded flanges.
Figs 3 and
4. After mounting, perform
leakage and functional tests.
5.
Lead seal
Lead seal eye 2 in 1.5 mm dia.
sealing valve. Lead seal eye 3
in 1.5mm cap stand headed
screw. After setting the
requested pressure setpoint:
1. Close protective valve 1.
2. Route wire through 2 and 3,
Fig. 2.
3. Press lead around wire ends,
keep wire loop short.
6. DMV - D 507/11 - 525/11
DMV-DLE 507/11 - 525/11
Main flow setting only possible
at V1! Set main volume on
open valve. Set valve V1
during operation.Check setting
values continuously. Smallest
setting volume flow:

16
General
7.
8.
9.
7. DMV-DLE Rapid stroke adjustment V start Factory setting
DMV-DLE:
Rapid stroke not adjusted
1. Unscrew the adjustment cap E from the hydraulic brake.
2. Turn the adjustment cap and use as a tool.
3. Turn a-clockwise = increase rapid stroke (+).
8. Replacing hydraulic brake unit or adjustment plate
1. Switch off firing system.
2. Remove locking varnish from countersunk screw A.
3. Unscrew countersunkscrew A.
4. Unscrew socket headscrew B.
5. Raise adjustment plate C or hy-draulic brake D.
6. Remove sealing plug E
7. Exchange adjustment plate C or hydraulic brake D
8. Screw in countersunk and socket head screw. Only tighten
socket head screw so that hydraulic brake can just be turned.
9. Coat countersunk screw A with locking varnish.
10. Leakage test: Pressure tap at sealing plug 2:
DMV 507-520/11 Pressure tap at sealing plug 3: DMV 525/11
p max. = 500 mbar.
11. Perform functional test.
12. Switch on firing system.
9. Replacing the solenoid
Versions with adjusting plate DMV-D 5.../11or
hydraulic brake DMV-DLE 5../11
1. Remove hydraulic brake or adjusting plate as described on
page 6: ”Replacing the hydraulic brake or adjusting disk”,
steps 1 - 5.
2. Replace solenoid
Important: Make sure that the solenoid no. and voltage are
correct!
3. Remount hydraulic brake or adjusting plate as described on
page 6. ”Replacing the hydraulic brake or adjusting plate”,
steps 7 -11.
!After completion of the jobs on the gas components, perform leakage control and function control.

17
General
!Never close vent nozzle!
1.
2.
Vent nozzle
Vent plug
Max. operating pressure 500 mbar
Pressure regulator Class A
Ambient temperature -15 °C … +70 °C
Inlet pressure range 5 - 500 mbar
Family 1 + 2 + 3
Outlet pressure range 2,5 - 200 mbar
Dimensions [ mm]
e
c
f
h
DN
af
e
d
b
b
h
d
DN
c
a
3.2 Gas pressure regulator Type FRS
Nominal diameters
Rp 3/8 - Rp 2 1/2
DN 40 - DN 150
2. Pressure taps
1. Vent plug
2. Connection for external pulse G 1/4 screw plug ISO 228, on
both sides, optional.
3. G 1/4 screw plug ISO 228, in inlet pressure range, on both
sides

18
General
Type Order
Weight
Numbe
p
max.
[mbar]
Rp / DN Dimensions
(mm) kg
a b c d e f g h
FRS 507 070 391 500 Rp 3/4 100 130 28 165 G1/4 G1/4 G1/8 245 1,00
FRS 510 070 409 500 Rp 1 110 145 33 190 G1/4 G1/4 G1/8 310 1,20
FRS 515 058 446 500 Rp 1 1/2 150 195 40 250 G1/2 G1/4 G1/4 365 2,50
FRS 520 058 628 500 Rp 2 170 250 47 310 G1/2 G1/4 G1/4 450 3,50
FRS 525 083 303 500 Rp 2 1/2 230 285 60 365 G1/2 G1/4 G1/4 550 6,00
FRS 5065 058 792 500 DN 65 290 285 95 405 G1/2 G1/4 G1/4 590 7,50
FRS 5080 079 681 500 DN 80 310 285 95 405 G1/2 G1/4 G1/4 590 10,00
!Do not use unit as lever.
DN 40 50 65 80 100 125 150
Rp 3/8 1/2 3/4 11 1/2 2 2 1/2 -- -- -- --
M max. 70 105 225 340 610 1100 1600 2400 5000 6000 7600
(Nm) ≤10s
T max 35 50 85 125 200 250 325 400 -- -- --
(Nm) ≤10s

19
General
Adjustment of outlet pressure (setpoint adjustment)
Factory setting: Standard spring p2 10-30 mbar
1.
1. Unscrew protective cap A.
2. Adjustment (+) Setting spindle B ”Turn counter-
clockwise” = Increasing outlet pressure (setpoint)
3. 4.
1.
B
A
2.
B
B
E
C/D
B
A
2.
Adjustment (-) Setting spindle B
”Turn clockwise” = Reducing outlet pressure (setpoint)
1. Check setpoint
2. Screw on protective cap A.
3. Attach lead seal (Page 5).
Replace setting spring
3-4
1. Remove protective cap. A.
Release spring by turning
adjustment spindle B counter
clockwise. Turn spindle to stop.
2. Unscrew complete adjustment
device B and remove spring C.
3. Insert new spring D.
4. Assemble complete adjustment
device and adjust desired off-
set.
5. Screw on protective cap A.
Stick adhesive label E onto
typplate.
6. Attach lead seal.
or

20
General
4. ELECTRIC EQUIPMENT LME...
4.1 Wiring diagram
Alt. 1
Enl. DIN 4791
Alt. 2 Alt. 3